Population and Sample

Front

What is the main purpose of sampling in statistics?

Back

To make predictions about a population using data from a smaller group.

Front

What best represents a sample in a nationwide election?

Back

A selection of voters of different ages.

Front

What describes descriptive statistics?

Back

Organizing and summarizing data that has been collected.

Front

What best represents a population in a survey about a new logo?

Back

Every person in the United States.

Front

What best represents a sample of album buyers?

Back

A selection of 3,294 people who bought the album.

Front

Define 'population' in statistics.

Back

The entire group of individuals or instances about whom we hope to learn.

Front

Define 'sample' in statistics.

Back

A subset of the population selected for analysis.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample includes only a portion of that group.

Front

What is the purpose of using a sample instead of a population?

Back

To save time and resources while still obtaining useful data.

Front

What is 'descriptive statistics'?

Back

Statistics that summarize or describe characteristics of a data set.